"use strict";

const utils = require("./../utils");

module.exports = utils.isStandardBrowserEnv()
  ? // 标准浏览器环境支持 document.cookie
    (function standardBrowserEnv() {
      return {
        write: function write(name, value, expires, path, domain, secure) {
          const cookie = [];
          cookie.push(name + "=" + encodeURIComponent(value));

          if (utils.isNumber(expires)) {
            cookie.push("expires=" + new Date(expires).toGMTString());
          }

          if (utils.isString(path)) {
            cookie.push("path=" + path);
          }

          if (utils.isString(domain)) {
            cookie.push("domain=" + domain);
          }

          if (secure === true) {
            cookie.push("secure");
          }

          document.cookie = cookie.join("; ");
        },

        read: function read(name) {
          const match = document.cookie.match(
            new RegExp("(^|;\\s*)(" + name + ")=([^;]*)")
          );
          return match ? decodeURIComponent(match[3]) : null;
        },

        remove: function remove(name) {
          this.write(name, "", Date.now() - 86400000);
        },
      };
    })()
  : // 非标准浏览器环境 (web workers, react-native) 缺乏需要的支持。
    (function nonStandardBrowserEnv() {
      return {
        write: function write() {},
        read: function read() {
          return null;
        },
        remove: function remove() {},
      };
    })();
